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A083610
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Starting positions of strings of three 3's in the decimal expansion of Pi.
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1
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1698, 4928, 6917, 7651, 8413, 8736, 8828, 12520, 17614, 21973, 22580, 22704, 22749, 23471, 25094, 25179, 28467, 28468, 28469, 30583, 32631, 33095, 35838, 37507, 38597, 41392, 42438, 42734, 45756, 48033, 48207, 48369, 49287, 50547, 52794
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OFFSET
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1,1
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LINKS
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Eric Weisstein's World of Mathematics, Pi Digits
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MATHEMATICA
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q=9!; z=3; a=RealDigits[Pi, 10, q]; lst={}; Do[b=a[[1]][[n]]; c=a[[1]][[n+1]]; d=a[[1]][[n+2]]; If[b==z&&c==z&&d==z, AppendTo[lst, n-1]], {n, q-2}]; lst (* Vladimir Joseph Stephan Orlovsky, Jun 19 2009 *)
Flatten[Position[Partition[RealDigits[Pi, 10, 53000][[1]], 3, 1], {3, 3, 3}]]-1 (* Harvey P. Dale, Mar 05 2015 *)
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CROSSREFS
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KEYWORD
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base,nonn
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AUTHOR
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STATUS
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approved
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